From cfb53f36a5b5eb60213fdb6ba191eb9d8b5e1163 Mon Sep 17 00:00:00 2001
From: Ido Shamay <idos@mellanox.com>
Date: Tue, 3 Feb 2015 17:57:21 +0200
Subject: [PATCH] net/mlx4_en: Notify TX Vlan offload change

Notify users when TX vlan offload feature changed with ethtool.
Relevant command - ethtool -K <eth> txvlan on/off.

Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 028937b2a199e..2a210c4efb895 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -2202,6 +2202,10 @@ static int mlx4_en_set_features(struct net_device *netdev,
 			return ret;
 	}
 
+	if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_HW_VLAN_CTAG_TX))
+		en_info(priv, "Turn %s TX vlan strip offload\n",
+			(features & NETIF_F_HW_VLAN_CTAG_TX) ? "ON" : "OFF");
+
 	if (features & NETIF_F_LOOPBACK)
 		priv->ctrl_flags |= cpu_to_be32(MLX4_WQE_CTRL_FORCE_LOOPBACK);
 	else
-- 
2.30.2